CN208252676U - A kind of hub motor with long service life - Google Patents
A kind of hub motor with long service life Download PDFInfo
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- CN208252676U CN208252676U CN201820373319.2U CN201820373319U CN208252676U CN 208252676 U CN208252676 U CN 208252676U CN 201820373319 U CN201820373319 U CN 201820373319U CN 208252676 U CN208252676 U CN 208252676U
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- gear
- main shaft
- wheel
- wheel hub
- planet carrier
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Abstract
Originally practical to be related to electrocar technical field, the wheel shaft of existing hub motor is connect with wheel hub or vehicle frame, easy to damage；The utility model provides a kind of hub motor with long service life, including wheel hub, wear the wheel shaft of wheel hub, set on wheel hub side inner stator and outer rotor and be set to the planetary reducer of the wheel hub other side, the planetary reducer includes sun gear, planetary gear, planet carrier and the ring gear for being fixed on wheel hub wall, the sun gear, planetary gear and ring gear transmission connection, one end of the planet carrier faces out axially extending formation axle sleeve, the axle sleeve is coated on outside wheel shaft, one end of the wheel hub with the bearing being socketed on outside axle sleeve with planet carrier by connecting；Long service life.
Description
Technical field
The utility model relates to electrocar technical field, more specifically a kind of wheel hub electricity with long service life
Machine.
Background technique
The speed of the small-sized electrics carrier such as electrically driven truck and electri forklift is lower, close with people's speed of travel, but horsepower
It to transport goods greatly.Therefore In-wheel motor driving is mostly used greatly, built-in electric motor and planetary reducer are combined, then
It is placed in wheel hub, the winding number of motor is decelerated to by desired winding number by retarder, wheel hub is made to obtain biggish torque.
In the prior art, hub motor includes wheel shaft, inner stator, outer rotor, wheel hub and planetary reducer, planet tooth
Wheel decelerator includes sun gear, planetary gear, planet carrier and ring gear.Wheel shaft is arranged in wheel hub, and inner stator and outer rotor are set to
Side in wheel hub, planetary gear speed-reduction its be set to the wheel hub other side.Sun gear and planet carrier are socketed on wheel shaft, the sun
Ratio between the diameter of wheel and the internal diameter of ring gear is smaller, and the torque that wheel hub obtains is bigger.Such as application No. is
2017209730278 Chinese patent.
The wheel shaft of the structural hub motor wears wheel hub, and wheel is taken out both ends and is individually fixed on vehicle frame, car body and goods weight
It shares on wheel shaft, wheel shaft diameter is thicker, and bigger with car body contact area, the pressure born in contact area is got over
Small, wheel shaft is just not likely to produce deformation, long service life.But in the case where hub diameter is constant, wheel shaft is thicker, is socketed on wheel
The diameter of sun gear on axis also increases with it, and the ratio between the diameter of sun gear and the internal diameter of ring gear increases, also
Reduce the output torque of such hub motor.
Utility model content
Technical problem to be solved in the utility model is to overcome above-mentioned defect existing in the prior art, provides a kind of tool
There are biggish output torque and hub motor with long service life.
To achieve the above object, the utility model is achieved by the following technical programs: a kind of wheel with long service life
Hub motor, including wheel hub, the wheel shaft, the inner stator set on wheel hub side and the outer rotor that wear wheel hub and to be set to wheel hub another
The planetary reducer of side, the planetary reducer include sun gear, planetary gear, planet carrier and are fixed on wheel hub wall
Ring gear, the sun gear, planetary gear and ring gear transmission connection, one end of the planet carrier faces out axially extending formation
Axle sleeve, the axle sleeve are coated on outside wheel shaft, and one end of the wheel hub with the bearing being socketed on outside axle sleeve with planet carrier by connecting.
By adopting the above technical scheme, by extending outward the axis that can coat wheel shaft a part on planet carrier
Set, avoids the direct load-bearing of wheel shaft, is equivalent to and increases the contact area of wheel shaft and wheel hub and vehicle frame, reduces on contact surface
Pressure, therefore lengthen the wheel shaft service life, and then extend hub motor service life.
The further preferred scheme of the utility model are as follows: the wheel shaft includes the first main shaft and the second main shaft；Described first is main
Axis is made of ordinary carbon steel, and second main shaft is made of high strength steel；The diameter of second main shaft is less than the first main shaft
Diameter；One end face of first main shaft is equipped with the first blind hole for connecting with the second main shaft；The inner stator socket
And it is fixed on first main shaft；The sun gear and planet carrier are socketed on second main shaft, sun gear and outer rotor
Fixed, it is outer and fixed thereto that axle sleeve is coated on the second main shaft.
By adopting the above technical scheme, wheel shaft is divided into the first main shaft and the second main shaft, it will be able to be arranged according to demand
The diameter of two main shafts, and make the second main shaft using material more higher than the first main axe intensity, that is, reduce Material Cost and
Processing cost, have the advantages that it is economic and practical, also have biggish output torque.
The further preferred scheme of the utility model are as follows: the wheel shaft further includes third main shaft；The diameter of the third main shaft
Less than the diameter of second main shaft, an end face of second main shaft is equipped with second for being fixedly connected with third main shaft
Blind hole；The axle sleeve successively coats the second main shaft and third main shaft.
The further preferred scheme of the utility model are as follows: internal screw thread, second main shaft one end are equipped in first blind hole
Equipped with corresponding internal screw thread.
The further preferred scheme of the utility model are as follows: internal screw thread, third main shaft one end are equipped in second blind hole
Equipped with corresponding internal screw thread.
The further preferred scheme of the utility model are as follows: the planetary gear is set on planet carrier, including a reduction gearing
An and transmission gear；The reduction gearing is duplicate gear, is made of large diameter gear and small-diameter gear；The large diameter gear with
The sun gear transmission connection, the small-diameter gear are sequentially connected through the transmission gear and the ring gear, are slowed down with increasing
Than.
The utility model is further preferred are as follows: the planetary gear is set on planet carrier, including a train of reduction gears and
One transmission gear；The train of reduction gears includes the multiple duplicate gears of multi-stage speed-reducing of being successively sequentially connected and formed, duplex-gear
Wheel is made of large diameter gear and small-diameter gear, and wherein the large diameter gear of first order duplicate gear and the sun gear are sequentially connected,
The small-diameter gear of afterbody duplicate gear is sequentially connected through the transmission gear and the ring gear, further increases deceleration
Than.
In conclusion the utility model has the following beneficial effects: compared with prior art, on the one hand, taken turns by setting
Set increases hub motor service life to increase wheel shaft service life；On the other hand, wheel shaft is divided into the first main shaft and
Two main shafts, it will be able to the diameter of the second main shaft is set according to demand, and made using material more higher than the first main axe intensity
Make the second main shaft, that is, reduce Material Cost and processing cost, have the advantages that it is economic and practical, also have it is biggish output turn
Square.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the explosive view of the utility model；
Fig. 3 is the structural schematic diagram that the utility model is free of wheel hub；
Fig. 4 is the utility model partial sectional view.
In figure: 1, wheel shaft；11, the first main shaft；111, the first blind hole；12, the second main shaft；121, the second blind hole；13, third
Main shaft；2, inner stator；3, outer rotor；4, planetary reducer；41, sun gear；42, planetary gear；43, planet carrier；44, internal tooth
Circle；45, duplicate gear；451, large diameter gear；452, small-diameter gear；46, transmission gear；47, axle sleeve；5, wheel hub.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
The present embodiment is only the explanation to the utility model, is not limitations of the present invention, this field skill
Art personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as
All by the protection of Patent Law in the scope of the claims of the utility model.
As shown in Figure 1, Figure 2 and Figure 3, a kind of hub motor is shown, including wheel hub 5, the wheel shaft 1 that wears wheel hub 5, is set to
The inner stator 2 and outer rotor 3 of 5 side of wheel hub and the planetary reducer 4 for being set to 5 other side of wheel hub.Inner stator 2 is fixed
In on wheel shaft 1, outer rotor 3 is socketed on outside inner stator 2 and its both ends is rotated by bearing on wheel shaft 1.
Planetary reducer 4 includes sun gear 41, planetary gear 42, planet carrier 43 and the internal tooth for being fixed on 5 inner wall of wheel hub
Circle 44.Planet carrier 43 is socketed and is fixed on wheel shaft 1, and planetary gear 42 is set on planet carrier 43；41 one end of sun gear is fixed on
On outer rotor 3, the other end is sequentially connected by planetary gear 42 and ring gear 44.
Wheel shaft 1 includes the first main shaft 11, the second main shaft 12 and third main shaft 13, and the first main shaft 11 is by normal carbon steel
At the second main shaft 12 is made of high strength steel.Diameter of the diameter of second main shaft 12 less than the first main shaft 11；First main shaft 11
One end face is equipped with the first blind hole 111 for connecting with the second main shaft 12；The diameter of third main shaft 13 is less than the second main shaft 12
Diameter, an end face of the second main shaft 12 is equipped with the second blind hole 121 for connecting with third main shaft 13.In the present embodiment
In, internal screw thread is equipped in the first blind hole 111,12 one end of the second main shaft is equipped with corresponding internal screw thread；It is set in second blind hole 121
There is internal screw thread, 13 one end of third main shaft is equipped with corresponding internal screw thread.In addition to this, the second main shaft 12 and the first main shaft 11 with
And the connection type of third main shaft 13 and the second main shaft 12 can also be that interference fit, grafting, key connection or buckle etc. are detachable
Connection.
Inner stator 2 is socketed and is fixed on the first main shaft 11；Sun gear 41 and planet carrier 43 are socketed on the second main shaft 12,
Planet carrier 43 and the second main shaft 12 are fixed.One end of planet carrier 43 faces out axially extending formation axle sleeve 47, and axle sleeve 47 successively wraps
Be overlying on outside the second main shaft 12 and third main shaft 13, one end of wheel hub 5 by with the bearing and planet carrier 43 that are socketed on outside axle sleeve 47
Connection.13 one end of third main shaft is equipped with for by the bolt head of 47 axial limiting of axle sleeve.
In order to increase the reduction ratio of planetary reducer 4, increase 5 torque of wheel hub.Planetary gear 42 is set to planet carrier 43
On, including a reduction gearing and a transmission gear 46；Reduction gearing is duplicate gear 45, by large diameter gear 451 and path tooth
452 composition of wheel；Large diameter gear 451 and sun gear 41 are sequentially connected, and small-diameter gear 452 is driven through transmission gear 46 and ring gear 44
Connection.
In addition to this, there are also another embodiments: planetary gear 42 is set on planet carrier 43, including a train of reduction gears
An and transmission gear 46；Train of reduction gears includes the multiple duplicate gears 45 of multi-stage speed-reducing of being successively sequentially connected and formed, double
Connection gear 45 be made of large diameter gear 451 and small-diameter gear 452, wherein the large diameter gear 451 of first order duplicate gear 45 with too
41 transmission connection of sun wheel, the small-diameter gear 452 of afterbody duplicate gear 45 are sequentially connected through transmission gear 46 and ring gear 44.
Claims (7)
1. a kind of hub motor with long service life, including wheel hub (5), the wheel shaft (1) that wears wheel hub (5), it is set to wheel hub (5) one
The inner stator (2) and outer rotor (3) of side and the planetary reducer (4) for being set to wheel hub (5) other side, the planet tooth
Wheel decelerator (4) includes sun gear (41), planetary gear (42), planet carrier (43) and the ring gear for being fixed on wheel hub (5) inner wall
(44), the sun gear (41), planetary gear (42) and ring gear (44) transmission connection, it is characterised in that: the planet carrier (43)
One end face out axially extending formation axle sleeve (47), the axle sleeve (47) is coated on wheel shaft (1) outside, the one of the wheel hub (5)
End by be socketed on the bearing of axle sleeve (47) outside and connect with planet carrier (43).
2. hub motor according to claim 1, it is characterised in that: the wheel shaft (1) includes the first main shaft (11) and the
Two main shafts (12)；First main shaft (11) is made of ordinary carbon steel, and second main shaft (12) is made of high strength steel；Institute
State diameter of the diameter less than the first main shaft (11) of the second main shaft (12)；One end face of first main shaft (11) is equipped with and is used for
The first blind hole (111) being connect with the second main shaft (12)；The inner stator (2) is socketed and is fixed on first main shaft (11)
On；The sun gear (41) and planet carrier (43) are socketed on second main shaft (12), and sun gear (41) and outer rotor (3) are solid
Fixed, it is outside and fixed thereto that axle sleeve (47) is coated on the second main shaft (12).
3. hub motor according to claim 2, it is characterised in that: the wheel shaft (1) further includes third main shaft (13)；Institute
The diameter for stating third main shaft (13) is less than the diameter of second main shaft (12), and an end face of second main shaft (12) is equipped with
The second blind hole (121) for being fixedly connected with third main shaft (13)；The axle sleeve (47) successively coat the second main shaft (12) and
Third main shaft (13).
4. hub motor according to claim 2, it is characterised in that: be equipped with internal screw thread, institute in first blind hole (111)
The second main shaft (12) one end is stated equipped with corresponding internal screw thread.
5. hub motor according to claim 3, it is characterised in that: be equipped with internal screw thread, institute in second blind hole (121)
Third main shaft (13) one end is stated equipped with corresponding internal screw thread.
6. hub motor according to claim 1, it is characterised in that: the planetary gear (42) is set to planet carrier (43)
On, including a reduction gearing and a transmission gear (46)；The reduction gearing is duplicate gear (45), by large diameter gear
(451) it is formed with small-diameter gear (452)；The large diameter gear (451) and the sun gear (41) are sequentially connected, the path tooth
(452) are taken turns to be sequentially connected through the transmission gear (46) and the ring gear (44).
7. hub motor according to claim 1, it is characterised in that: the planetary gear (42) is set to planet carrier (43)
On, including a train of reduction gears and a transmission gear (46)；The train of reduction gears includes successively being sequentially connected and being formed more
Multiple duplicate gears (45) that grade is slowed down, duplicate gear (45) are made of large diameter gear (451) and small-diameter gear (452), wherein
The large diameter gear (451) of first order duplicate gear (45) and the sun gear (41) are sequentially connected, afterbody duplicate gear
(45) small-diameter gear (452) is sequentially connected through the transmission gear (46) and the ring gear (44).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820373319.2U CN208252676U (en) | 2018-03-19 | 2018-03-19 | A kind of hub motor with long service life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820373319.2U CN208252676U (en) | 2018-03-19 | 2018-03-19 | A kind of hub motor with long service life |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208252676U true CN208252676U (en) | 2018-12-18 |
Family
ID=64608998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820373319.2U Active CN208252676U (en) | 2018-03-19 | 2018-03-19 | A kind of hub motor with long service life |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208252676U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109617323A (en) * | 2018-12-28 | 2019-04-12 | 苏州光仪器有限公司 | A kind of instrument of surveying and mapping and its hybrid coding localization method of use |
| CN110525197A (en) * | 2019-09-24 | 2019-12-03 | 临海市志鼎电子科技股份有限公司 | A kind of driving wheel of carrier |
-
2018
- 2018-03-19 CN CN201820373319.2U patent/CN208252676U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109617323A (en) * | 2018-12-28 | 2019-04-12 | 苏州光仪器有限公司 | A kind of instrument of surveying and mapping and its hybrid coding localization method of use |
| CN110525197A (en) * | 2019-09-24 | 2019-12-03 | 临海市志鼎电子科技股份有限公司 | A kind of driving wheel of carrier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 321300 no.287, Lingshi Road, Chengxi New District, Yongkang City, Jinhua City, Zhejiang Province Patentee after: Zhejiang Unitech Electric Co.,Ltd. Address before: 321300 no.287, Lingshi Road, Chengxi Industrial Zone, Yongkang City, Jinhua City, Zhejiang Province Patentee before: ZHEJIANG UNITE MOTOR Co.,Ltd. |
|
| CP03 | Change of name, title or address |